The suspects were brought under heavy guard in batches from different prisons by police to the Colombo High Court during the morning hours.
Police have filed over 23,000 charges against the suspects, including conspiring to murder, aiding and abetting the attacks, and collecting arms and ammunition. Lawyers representing the suspects said the charges were too numerous in number and the case could take as long as a decade to conclude.
“As things are now it is impossible to identify which specific charges match with which suspect. We are hoping there will be more clarity on this. We are concerned that this case will drag on and it will be a futile exercise,” Attorney Noordeen M Shaheed, who represents six of the suspects, said.
The group includes Mohammad Naufer, who officials say masterminded the attack and is linked to Islamic State. He was escorted by armed police to the court with his face covered by a piece of cloth.
Another key suspect is YM Ibrahim, the father of two of the suicide bombers, Inshaf and Illham Ibrahim, who targeted two hotels in Colombo.
Lawyers for Naufer and Ibrahim could not be immediately reached for comment.
The string of attacks carried out on April 21 2019, Easter Sunday, targeted three churches and three hotels, killing 267 people, including at least 45 foreign nationals. At least 40 children also died.
The attacks, the worst in Sri Lanka’s turbulent history, also injured about 500 people, mostly belonging to the island’s minority Catholic community.
The Catholic community is keeping a close eye on the trial, said lawyer Neville Abeyratne who is representing the head of Sri Lanka’s Catholic Church Cardinal Malcolm Ranjith.
“We are monitoring this trial in the hope that when it ends we can bring civil action asking for compensation for those who were killed and injured,” he said.
Trials of two Sri Lankan officials accused of failing to prevent the attacks began on Monday.